Be(w)ar(e) the moat around this historic Czech castle.

Museum preserving torture methods from the past.

The former Nazi concentration camp stands as a museum to remember this dark chapter in European history.

An underground city of salt.

A tribute to the Polish insurgents who fought in the failed attempt to end their city's Nazi occupation.

A statue honors the children who fought Nazis in Poland.

After the famous composer died in Paris, his sister snuck his heart out of the country to honor his wish that it be buried in their native country.

This tipsy office building in downtown Prague was originally called “Fred and Ginger.”

A bust of Franz Kafka spins in pieces, reflecting the writer's inner torment.

The site of the famous Nazi book burning campaign of 1933 remembers its "Night of Shame".

A narrow passage next to a cafe leads to a courtyard exploding with murals, tags, and paste-ups.

Thousands of rusting train cars have been slowly falling apart on the edge of Greece's second largest city.

Where commuters walk through remnants of an ancient Greek necropolis.

150 or so scrounged-up lamps, chandeliers, and lanterns light up this alley in central Athens.

Seventeen oak trees sprout from the roof and walls of this tiny chapel without any visual evidence of roots.

Monasteries on rock pillars, once accessible only by frayed ropes.

A church of bones, decorated with 40,000 human skeletons.